Operation: *For this item, there's only side switch to operate, press it more than 1 second for turning light on/off, press further for instant access to change modes Max(100%)-Mid(30%)-Min(5%) and strobe(click for twice quickly)*Strobe can be activated from off as long as you click the button for twice Parameters:

Max Output ( lm )

1000

Runtime ( H )

4

Distance ( m )

200

Battery

3 * 18650 pack

Weight ( g )

120

Size ( mm )

69 * 32

Output & Runtime:*Max output of 1000 lumens for approximately 4 Hours *Mid output of 300 lumens for approximately 12 Hours *Min output of 50 lumens for approximately 80 HoursNote:Stated brightness and runtime figures are based on tests using 3PC 18650 Li-ion battery(approximate 2200mAH) under laboratory conditions. Variances in these figures will occur depending on batteries used and individual usage habits.